51results about How to "Level accuracy" patented technology

A markerless motion capture system is provided for measurements accurate enough for biomechanical, clinical, sport, entertainment, animation, game and movie, design, ergonomics, surveillance applications. The system has multiple cameras distributed around a viewing volume. The cameras allow for the creation of three-dimensional mesh representations of an object dynamically moving within the viewing volume. A model of the object that incorporates specific morphological and kinematic model information (including soft joint constraints) is then matched to the captured three-dimensional mesh representations. The matching routine aims to embed the model into each of the three-dimensional representations using (i) iterative closest point or simulated annealing algorithms and (ii) using soft joint constraints. This unique combination of routines offers a simple, time-efficient, accurate and thus more meaningful assessment of movements. The system further offers feasibility of accurately and precisely measuring three-dimensional kinematics of the dynamically moving object or human.

An electrophotographic photosensitive drum is for a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The main assembly includes a motor, and a gear having a non-circular twisted hole. The drum includes a cylinder having a non-circular twisted projection engageable with the hole to receive a driving force from the main assembly when the cartridge is mounted to the main assembly. A recess is formed in of the projection and has a bottom portion and a side surface portion. When the projection receives a pulling force toward the hole by rotation of the gear with the projection and the hole being engaged with each other, the bottom portion contacts a spherical surface portion provided at a central portion of the hole, and the side surface portion contacts the spherical surface portion.

A method for enhancing a three dimensional image from frames of flash LIDAR data includes generating a first distance R_i from a first detector i to a first point on a surface S_i. After defining a map with a mesh Θ having cells k, a first array S(k), a second array M(k), and a third array D(k) are initialized. The first array corresponds to the surface, the second array corresponds to the elevation map, and the third array D(k) receives an output for the DEM. The surface is projected onto the mesh Θ, so that a second distance R_k from a second point on the mesh Θ to the detector can be found. From this, a height may be calculated, which permits the generation of a digital elevation map. Also, using sequential frames of flash LIDAR data, vehicle control is possible using an offset between successive frames.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A feed chute having a transport spiral therein is operatively connected to the hopper for receiving pills therefrom. The transport spiral has an outlet and controllable aperture. A vibrating plate is disposed proximate the outlet. A drive mechanism is connected to the vibrating plate for imparting vibration thereto. The drive mechanism can abruptly stop the vibration of the vibrating plate. A microcontroller is also operatively connected to the hopper, the transport spiral, and the drive mechanism. The system can self-calibrate the mechanism for counting and dispensing pills.

A method for bonding materials with different thermal expansion coefficients is provided. An intermediary layer of glass, ceramics, polymers, metals or composites is inserted between the materials to be bonded; this intermediary layer has a compositional gradient that could have been formed through diffusion processes. The coefficient of thermal expansion changes across the intermediary layer and on each side it is not substantially different from the coefficient of thermal expansion of the material that the layer is facing. In that manner there is nowhere within the intermediate layer or on the interfaces to the materials being bonded that thermally induced stress will cause fractures or significant permanent plastic deformation. The thickness of the intermediary layer depends on the difference in the coefficient of thermal expansion between the two materials being bonded, the temperature range the bond will be exposed to and the elasticity.

A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A feed chute is operatively connected to the hopper for receiving pills therefrom. The feed chute has an outlet and controllable aperture. A vibrating plate is disposed proximate the outlet. A drive mechanism is connected to the vibrating plate for imparting vibration thereto. The drive mechanism has a mechanism for abruptly stopping the vibration of the vibrating plate. A microcontroller is also operatively connected to the hopper, the feed chute, and the drive mechanism.

A cylinder liner has an outer circumferential surface around which another metal is to be cast. The cylinder liner also has a plurality of protrusions disposed on the outer circumferential surface and having respective substantially conical undercuts or necks which are progressively spread outwardly from the outer circumferential surface. The protrusions have respective flat faces on the distal ends of the undercuts.

A method and apparatus for identifying deformation of a structure. Training deformation data is identified for each training case in a plurality of training cases. Training strain data is identified for each training case in the plurality of training cases. The training deformation data and the training strain data are configured for use by a heuristic model to increase an accuracy of output data generated by the heuristic model. A group of parameters for the heuristic model is adjusted using the training deformation data and the training strain data for the each training case in the plurality of training cases such that the heuristic model is trained to generate estimated deformation data for the structure based on input strain data. The estimated deformation data has a desired level of accuracy.

Apparatus and method for electronically estimating focusing distance between a camera (still and/or video camera) and a subject. Images at different focal positions of a calibration target are collected to arrive at a focus matching model for a given imaging apparatus. In operation, at least two images are captured and convolutions performed which approximate the modeling of blur change as a point spread function. Wavelet transforms are applied to the images after each convolution and images are compared based on the wavelet variance differences to provide a motion robust blur difference determination. Applying the blur differences to the focus matching model provides an estimate of focusing distance, which can be utilized such as for controlling camera focus.

An image encryption/decryption system performs quantification and reconstruction of 2-D and 3-D layered and arbitrary grayscale or binary images in raster or vector format and supports their secure transmission between a Sender and a Receiver. Quantification parameters of the images include Indices of Intrinsic Anisotropy of size (IIA_size) and structure (IIA_str), which reflect the image anisotropy with high sensitivity. The IIA_STR and IIA_SIZE are used as hash values in authentication of a transmitted image. The system assures that the same set of transects which was used by the Sender in the image encryption will be used only by an authorized Receiver for decryption of the image. Using the Quantification parameters (IIA_str and IIA_size), the present technique pinpoints the differences in structure and size in time series images, computes the localization of the differences between images of different categories and presented in different formats, and is capable of performing reconstruction of original 2-D and 3-D images from their N-partite graphs G (N) and F(M,N) table. The subject system and method may be used for fully automated quantification of dimensions and structure of 2-D and 3-D lesions with fuzzy margins in a precise and highly efficient manner.

The present invention relates to methods of detecting differentially expressed protein expression indicative of COPD in a test sample. The detection of circulating levels of proteins within an identified COPD biomarker signature can aid in COPD diagnosis and disease monitoring, as well as in the prediction of responses to therapeutics. Evaluation of the biomarker signatures disclosed, or a subset of biomarkers thereof, provides a level of discrimination not found with individual markers.

A method and apparatus for identifying a vitality for a workforce is presented. Groups of people in the workforce are selected based on a number of characteristics about the groups. A model for the vitality for the groups of people is generated by a computer system from payroll data for the groups. The model shows the vitality for the groups of people as a measure of performance for the groups based on the payroll data. Proportions of the payroll data for the groups of people in the payroll data are identified by the computer system. The model is adjusted by the computer system based on a difference between the proportions of the payroll data and desired proportions of the payroll data for the groups of people in the payroll data. The model has a desired level of accuracy and enables changing the workforce based on an analysis using the model.

A system method, and computer program product for individual aircraft pollution tracking, including at least one of real-time pollution tracking and pollution estimation of individual moving aircraft, wherein the pollution estimation is equal in accuracy as relative accuracy of employed inputs; pollution estimation for various aircraft, and various types of pollution based on suitably available raw data; and pollution estimation including filtering of outputs and formatting thereof to provide usability for comparison to regulation criteria and assessments of pollution mitigation efforts, including fleet mix, level of technology, and pollution attainment determination.

A terminal guidance and/or steering process for a projectile towards a target, process in which the orientation of a velocity vector {right arrow over (Vp)} is determined then a guidance law is applied and finally a steering algorithm enabling the projectile to be reoriented towards its target, process wherein the three components of the terrestrial magnetic field {right arrow over (H)} are measured in a projectile-linked reference marker (Ox_mY_mZ_m) and these measurements are used in the guidance law and/or steering algorithm as a fixed reference marker enabling the orientation at least partially of the projectile-linked reference marker with respect to the terrestrial reference marker (GX_fY_fZ_f).

The invention provides an A-frame. The A-frame comprises a main platform, three upper leg parts and three lower leg parts, wherein the three upper leg parts are all hinged with the main platform and are connected with the lower leg parts in a sliding manner, first clamping sleeves are arranged between the upper leg parts and the lower leg parts to complete primary locking, so that the rough adjustment is realized; racks are fixed at the lower leg parts, second clamping sleeves are arranged on the upper leg parts in a sleeving manner and are provided with gears, and the gears and the racks are meshed, so that the fine adjustment can be realized. The accurate levelness adjustment of the A-frame can be realized through coarse adjustment and fine adjustment on stretching lengths of the three upper leg parts and three lower leg parts. The A-frame has a simple structure, and is low in cost and convenient to operate.

A device and method to be used in the calibration process for a linear accelerator (LINAC). The optical water surface detector device allows the accurate determine of the height of the water surface in a tank. The device housing includes a light source and a light receiver. The housing can also include a circuit board. The device is mounted on an arm attached to a vertical position mechanism mounted within the tank. The light source within the device is controlled by a main control unit which also receives signals from the receiver and determines the amount of light striking the receiver. The control unit also controls the position of the vertical position mechanism and thus the arm on which the device is mounted.